Gaze of Easter Island

If more life than mana was used to play this card,
destroy target creature, then gain X life, where
X is the CMC of destroyed creature, rounded
down. This card is now the Instant type.
If more mana than life was used to play this card,
you may discard up to 3 cards, then gain their
total CMC combined. You cannot gain any other
mana this turn. This card is now the Sorcery type.